Desk-calendar.



E. OLDENBUSCH. DESKCALENDAR. APPLlcAxoN min FEB. 15, 1911.

Patented Aug. 1 4, 1917. Y

29 ,7 za aa ATTORNEYS ...ill-Ir .o

WITNESSES ERNEST OLDENBITSCH, OF BROOKLYN, NEW YORK.

DESK- CALENDAR.

Application filed February 15, 1917.

To all 107mm t may concern.'

Be it known that I, ERNEST OLDnNBUsoi-i, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Desk-Calendar, of which the following is a full, clear, and exact description.

This invention relates to changeable articles of ornamentation or stationery vand has particular reference to such devicesas may be termed perpetual calendars in which there are provided a plurality of independently and relatively movable disks or their equivalent bearing selective legends or indicia.

Among the objects of this invention is to provide a desk calendar and by the term calendar as used herein, I means to cover any analogous device or apparatus) comprising a casing and a series of movable parts, all the parts, both of the casing and otherwise, being made preferably of sheet metal or other substantial material and assembled without the use of rivets, screws or other fasteners, except tongues or lugs made integral with certain of the parts.

Another object of the invention is to provide a calendar of the nature indicated having relatively stationary and movable parts, the movable parts being provided with teeth or similar projections, and the stationary parts being provided with shoulders or similar stop devices which register with the several teeth of the movable parts, whereby the operator is sure that the movable parts will be stopped at precise predetermined points.

Another object of the invention is to provide a calendar of the character set forth having relatively stationary and movable parts, the movable parts being provided with teeth or other projections for manipulation thereof, while the stationary parts provide or include certain extensions which serve to guard the movable parts from undesirable contact with a person or other objects and to prevent accidental movement of the movable parts.

A still further object is to provide a casing having inwardly projecting hubs or projections which serve as pivots around which the movable parts arev adapted to be rotated or journaled.

With the foregoing and other objects in Specification of Letters Patent.

Patented Aug. 14, 191 *7' serial No. 148,759.

view the invention consists in the arrange- .ment and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which-L Figure l is a front elevation showing a preferred embodiment of the invention;

Fig. 2 is a rear elevation of the same;

Fig. 3 is a horizontal longitudinal section on the line 3 8 of Fig. l on a large scale;

Figs. 4 and 5 are vertical transverse sec lions on the corresponding broken lines of ri l Figs. 6, 7, 8, and 9 are detail face views ofdas many different rotary parts or disks; an

Fig. l0 is a detail face view of a keeper plate described more particularly below.

eferring now more particularly to the drawings, I show a device made preferably of thin sheet metal or equivalent rigid material stamped and assembled as indicated. understood, however, that while I show the invention as embodying aperpetual calendar with a series of rotary disks as the movable or changeable parts, certain features of the improvement are susceptible of being utilized in other relations, and hence I do not wish to be unnecessarily restricted in the interpretation of the claims.

As shown herein the device comprises a casing having front and rear plates l5 and 16 respectively, the front plate having a bounding flange 17 extending rearwardly and against the edge of which the edge of the substantially fiat back plate is fitted. Any suitable or well known form of easel or supporting device 1S may be connected to the rear plate, as shown at 19, ybut which feature I do not claim as part of my invention.

The front plate l5 is formed with a central hub or annular flange 20 struck rearwardly from the plane of the main portion of the plate forming a central hole 20, and a pair of lips or lugs 21 are formed on the edge of said hub. The length or depth of the hub flange 20, as shown best in Figs. 3 and 4, is less than that of the flange 17. This hub 20 provides not only for a view through the opening thereof to certain of the indicia described below, but also and primarily a support upon or around which a port-ion of the relatively movable parts are mounted. 1n addition to the hub structure, the front plate is provided with two windows 22 and 23 arranged diametrically opposite each other on opposite sides of the hole 20 and preferably equally distant from the center of the device. Furthermore, the front plate is provided with an inwardly struck lip 24: held as an integral part of said plate around its outer edge while the main portion of the lip occupies a position spaced inwardly or rearwardly and parallel to the main portion of the plate. See Fig. et. This lip is arc-shaped with reference to the center of the device. The formation of this lip provides a square shoulder or stop Qi at one end of the space from which the lip is struck by the dies. rlhe main portion of the front plate 15 is circular, but at each end there is provided an arc-shaped extension 15a or 15", each provided with a recess 25 or Q6, at one Lend of which is formed a shoulder 25 or 26. At .the upper edge of the main portion of the plate and preferably on the side opposite the lip 2e is provided another indentation or recess 27, having at one end a stop or shoulder Q7.

As adapted for a calendar, this device includes a series of four rot-ary disks 28, 29, 30, and 31. Two of these disks QS and 29 are mounted concentrically of each other and the main device for rotation around the hub E20, each disk being provided with a central hole 32 or 33 of a size fitting neatly upon the larger diameter of the hub. The disk 28 is applied rst, directly in the rear of the plate 15 with its periphery lying between the lip Z4 and the plate. Said periphery is provided with a series of seven teeth or projections 28', one of which is always visible in the space from which the lip Q4 is struck and which may be reached with the thumb or finger nail or any suitable instrument for rotation of the disk in a clockwise direction until said tooth registers with the shoulder 24E. This disk bears upon its face a series of seven legends representing the successive days of the week which are viewed in succession through the window 22, each legend being arranged upon the disk in the precise position requisite for it to be viewed through said window when its corresponding tooth 28 registers with the stop shoulder 24C". This disk 28, furthermore, is provided with a series of seven windows 3ft arranged severally between the adjacent legends, the arrangement being such that for each legend arranged to be viewed through the window Q2, one of the windows 3e registers with the window '23 on the opposite side of the axis of the device.

Next to the disk 38 is located a spacing ring or washer 35, next to which is placed the disk Q9 bearing a series of legends representing the several months of the year in succession, for each of which is arranged a peripheral tooth 29. The periphery of this disk projects into the recess 27 and when the several teeth 29 are manipulated by the thumb or finger nail and brought into registry with the shoulder 27 at the end of said recess, the corresponding legend will be visible through the windows Bil and 32. The depth of the hub 2O is approximately equal to, or at most slightly greater than, the combined thickness of the two disks 2S and 29 and the interposed washer 35. Next in the rear of the disk 29 is placed the keeper plate 3G shown in detail in Fig. 10 and comprising a central disk portion 37 having a pair of windows 38 and 39 formed therethrough and a series of flexible and slightly curved fingers l0 bearing forwardly against the rear face of the disk Q9, while the disk portion 37 lies squarely against the rear edge of the hub. The lugs 21 of the hub above referred to project through holes Q1 formed in the keeper plate which, when bent over, hold the said plate snugly in position and with the fingers et@ bearing upon the disk 29 with sufficient friction to prevent accidental rotation of either of the disks 28 and 29. The disk portion 37 of the keeper plate constitutes a rear face or closure for the opening 2G of the hub at the center of the front plate.

The back plate 16 is substantially flat except for a pair of hubs del and 4Q' pressed inwardly therefrom concentric with the casing extensions 15l and 15", and upon which the smaller disks f3() and 31 are respectively journalcd, said disks having central holes t1 and 42, through which said hubs project. See Fig. 3. Said hubs project practically between the lingers 40 at the several ends of the keeper plate, and obviously the hubs hold the smaller disks in proper position and in the same plane. The disk 30 is provided with a series of teeth 30 which are adapted to occupy the recess 25 in succession, with one of the teeth always registering with the shoulder 25. eral sets of numerals representing the tens place of the days of the month and visible through the window 88. T he other disk 31 is provided with a series of ten peripheral teeth. 31 which project in succession into the recess 26 and always with one tooth reg-- istering with the stop shoulder 26. This disk carries the ldigits from naught to nine representing the units of the days of the month and visible in succession through the window 39. The periphery of the back plate 16 is notched to receive a series of lugs 8 which are adapted to bend over the back surface of the plate whereby all vof the parts of the casing are held rigid in relative po- This disk carries a set or sevsition and together. Referring now again to the correlation between the movable parts and the casing, I wish to point out particularly that each disk is so housed as to obviate any immediate danger of accidental rotation or movement of any of the disks while a portion of each disk is exposed for proper manipulation. Again the setting of the calendar may be eifected readily and without special care on the part of the operator, inasmuch as the rotation of each disk under the action of the linger or pencil point can be carried only to a predetermined extent limited by the respective stop shoulder.

I claim:

l. In a device of the character set forth, the combination of a relative stationary casing, a relatively movable part bearing a series otl selective legends within the casing, the periphery of the movable part lying within the boundary line of the casing, the casing having a window through which said legends may be viewed in succession, said movable part having a series of marginal teeth corresponding in number and position to the selective legends respectively and the stationary part having a stop shoulder within its periphery with which said teeth are adapted to register in succession to properly position the respective legends.

2. The combination of a casing plurality of windows therein and a plurality of recesses, one for each window, a plurality ot' movable members within the casing, each member carrying a series of selective indicia adapted to register with and be viewed through the respective windows, each movable member having a toothed portion projecting into the casing recess pertaining thereto, said teeth being arranged as to location and number corresponding to the indicia carried by the respective movable members and the end of each recess toward which the teeth of the movable members are adapted to operate in succession serving as a stop to insure that the desired indicia will be properly positioned with respect to the several windows.

3. 'Ihe combination of a casing including a front plate having an integral hollow central hub, said plate being formed on o posite sides of the hub with a plurality of windows, a pair of disks journaled concentrically of each other upon said hub and bearhaving a ing selective indicia visible in succession through the respective windows, a keeper plate secured upon the inner end of the hub and having means bearing rictionally upon one of said disks, said keeper plate having a window within the opening of said hub, a movable member located in the rear of said keeper plate and having selective indicia visible through the window of the keeper plate, and a back plate locked to the front plate and having a member serving to position said last-mentioned movable member for proper operation with respect to the keeper plate window.

4L. The combination of a front plate having a central open hub formed thereon, a keeper plate for the bottom oi' said opening, said keeper plate having a pair of windows formed therein, a pair of rotary disks lying in the same plane at the rear or' the keeper plate and having selective indicia visible in succession through respective windows, said keeper plate having a plurality of spring fingers bearing frictionally upon said disks to control the rotation thereof, a back having a pair of spaced members upon which said disks are journaled and held in proper position, and means to lock the front and back plates rigidly together.

5. The combination of a front plate having formed thereon a hollow central bearing hub having on opposite sides of said hub a pair of windows, a pair of disks journaled concentrically of each other upon said hub and bearing selective indicia visible in succession through the respective windows, a keeper plate Xed upon the inner end of said hub, said keeper plate being provided with a plurality of lingers bearing frictionally upon the adjacent disk, said keeper plate also constituting a closure for the inner end of the hollow hub and provided with a pair of Windows, a rear plate having a pair of inwardly projecting hubs extending between said keeper plate lingers and a pair of disks lying in the same plane and journaled upon said rear plate hubs, said pair of disks bearing selective indicia visible in succession through the keeper plate windows, and means carried by the front and rear plates to lock them rigidly together and serving to hold all the other parts in proper position.

ERNEST OLDENBUSCH.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. v 

